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System1, Inc. (SST) is a technology company in the client management systems industry, based in Los Angeles, United States, with about 250 full-time employees.
Its largest business segment, Marketing, brought in 65% of segment revenue in fiscal year 2025; United States was the largest region with 99%. Its market capitalization was $20.38 million as of October 9, 2026.
Figures from company filings and market data; latest fiscal year ended December 31, 2024; market data as of October 9, 2026.
System1, Inc. provides omnichannel customer acquisition platform services through its proprietary responsive acquisition marketing platform in the United States and internationally. It operates in two segments: Owned and Operated Advertising, and Partner Network.
Marketing, with $172.89 million or 65% of segment revenue in fiscal year 2025. Next: Products (35%).
United States: 99% of revenue by region in fiscal year 2025, followed by Other Countries (1%).
$20.38 million as of October 9, 2026.
Listed companies of a similar size in the same industry (client management systems) include Thryv Holdings, Inc. (THRY), Brand Engagement Network, Inc. (BNAI), Mobiquity Technologies, Inc. (MOBQ), Dgtl Holdings Inc. (DGTHF).